Hatch-cover-supporting device.



WIT 5552s:

A. P. RANKIN.

HATCH COVER SUPPORTING DEVICE.

APPLICATION FILED AUG. 10, 1914 Patented Feb. 2, 1915.

2 SHEETS-SHEET 1.

1 "lfz THE NORRIS PETERS CO.. PHOTO-LITHO, WASHINGTON, D. u

A. P. RANKIN.

HATGH COVER SUPPORTING DEVICE.

APPLICATION FILED AUG. 10, 1914.

1,126,864. Patented Feb. 2, 1915.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

ARCHIBALD P. RANKIN, OF MANITOWOC, WISCONSIN, ASSIGNOR TO MANI'IOWOC SHIP BUILDING AND DRY DOCK COMPANY, OF MANITOWOC, WISCONSIN, A CORIPORATION OF WISCONSIN.

HATCH-COVEB-SUPPORTING DEVICE.

Specification of Letters Patent.

Patented Feb. 2, 1915.

To all whom it may concern Be it known that I, AROHIBALD P. RAN- KIN, a citizen of the United States, and residing at Manitowoc, in the county of Manitowoc and State of Wisconsin, have invented certain new and useful Improvements in Hatch-Cover-Supporting Devices, of which the following is a full, clear, and exact specification, reference being had to the accompanying drawings, forming a part hereof.

My invention relates generally to ship hatches, having reference more particularly to a novel device for supporting hatch cover sections when removed to uncover the hatch.

The invention has for its main object to provide an improved hatch cover supporting means which may be conveniently stowed away when not in use, and capable of ready withdrawal to occupy a cover supporting position clear of the deck. Another object of my invention is the provision of means for guiding and limiting the movement of the supporting means from one end to the other of its limiting positions.

These, together with such other objects as may hereinafter appear, or are incident to my invention, I attain by means of a construction, illustrated in preferred form, wherein Figure 1 is a transverse sectional view of a hatch illustrating the application of my invention thereto;

Figure 2 is a similar view showing the hatch cover sections removed from the hatch and supported by the supporting means;

Figure 3 represents a front elevation of the hatch coaming in Figure 1;

Figures 4: and 5 are plan views of Figures 1 and 2 respectively, and

Figure 6 is a section taken through Figure 1 on the line VIVI.

Referring to the drawings, the numeral 10 indicates the deck of the ship or barge having the hatchway 11 and rectangular coamings 12, the wall of the latter being preferably extended transversely beyond the partition 13 to form the pocket 14 located within the coamings and above the plane of the deck. Extending across the coamings to cover the hatchway is the usual hatch cover 15, in this case comprising a plurality of cover sections which are adapted to be withdrawn from the median line of the hatch to the position shown in Fig. 2 to uncover the" hatch. As the construction of the hatch cover sections do not form an essential part of this invention, it is not deemed necessary to give a detailed description of the same.

Prior to my invention it has been the practice to support the sections when telescoped by a number of pivoted struts or stanchions extending from the deck, which were unwieldy in character and when stowed were often in the way and occupied deck space frequently needed for other purposes. It is my aim to furnish a means for overcoming these disadvantages: and in carrying out my invention I provide any desired number of bars 16, preferably two, as shown, each adapted to be supported and guided by the slotted guide 17 and the coamings whose longitudinal side wall 12 is formed with an aperture 12 for this purpose.

The guide 17 is preferably composed of an angle bar section, one leg being secured to the transverse wall 12 and the other formed with a vertical slot 17, the bar having guided movement on an inclined plane through the aperture 12 and slot 17 when being moved to take up the positions shown in Figures 1 and 2 respectively, the former indicating the normal or stowed position of the bar and the latter its operative position.

In its normal position, the bar penetrates into the hatchway 11, and has its outer end extending slightly through the aperture 12', being provided thereat with a handhold or shackle 18 by means of which it may be withdrawn to a position where its outer end engages and supports the cover sections, as in the manner shown. When thus positioned, the inner end of the bar is wholly within the pocket 14 and consequently lies out of the path of unloading devices. A notch 16 is formed at or near the inner terminal of the bar which is adapted to have a locking engagement with the guide 17 to lock the bar in its supporting position.

With the parts in position as shown in Figure 1, the bars are grasped by the shackles 18 and pulled outwardly through the guiding slots and apertures until their notches 16 lock with the guides, whereupon the cover sections are withdrawn away from the median line of the hatchway to rest upon the bars, as in Figure 2; it being understood that where the sections are withdrawn from the center line of the hatch, as in this case, a duplicate set of bars may be provided at the opposing side of the hatch. When the cover sections are replaced, the bars are then moved inwardly until'their shackles 18 abut the coamings, the shackles and notchesacting as stopsto limit the movement of the bars from one position to the'other. v From the foregoing, the essential features, elements, and operation of the device, together with its simplicity and other ,advan-o tages thereof, will be clearly apparent to those skilled in the art.

precise arrangementof the parts, nor to the enactdetzuls of construction, as shown, for

a it deemed obvious that variations therei coiji 5% this ast inaybe obtained for from may be madewithout in any way departing from the spirit and scope of my invention as pointed out in the appended claims.

Having thus described my invention and i illustrated its useflvhat I claim as; new anddesire to secure by Letters Patent, is the folwin e "l. Aohatch covei;supporting member em- .b 3d' ii1 g substantially straight body porz v he h tc ww iymll d c v r supporting has adaptedtqextend through the coamings and to be lockedin said guide I not intend to restrict myself to the l. A hatch cover supporting means com prising va retractable member slidably sup-.

ported by the hatch at adj acentpointsand in an inclined plane, saidmember'being-re tractable 'froma stowed position to an operativehatch cover supporting position exteriorly of the said hatch. T I .1 :1, a A hatch cover support comprising one or moreguided bars capable of being partly withdrawn from. a stowed position within the hatch to an operative "hatch cover supn porting position eXteriorl-v of said hatch,

substantially as described 6. A hatch cover supportingmember lasso ciatedwith the hatch coamings. in such a manner as to be capable of withdrawal out. wardly away therefromto occupy an oper; ative position where it. projects beyond the: coamings to receive'the hatch cover, and

means cooperating with said coamings, for

guiding the member in this said outward movement, substantially as described.

1A., hatch cover supporting member extending through an opening in the hatch coamings and adapted to travel therein when moving between its normal and operative positions, means cooperating therewith for guiding the member during said movm li f and;stop means for limiting the movement of the member.; 4, In testimony whereof l ha've hereunto signed y name in the presence of the two subscribed witnesses v I I ARCHIBALD P.'RANKIN..- Witnesses: V

, ELunn nts,

N. A. KNUnsoN.

five cents each, by addressing the Commissioner of latents.

Washington, D. C. i 

